Please use this identifier to cite or link to this item:
Title: Movement intention is better predicted than attention in the posterior parietal cortex.
Authors: Quian Quiroga R
Snyder, LH
Batista, AP
Cui, H
Andersen, RA
First Published: 29-Mar-2006
Citation: J NEUROSCI, 2006, 26 (13), pp. 3615-3620
Abstract: We decoded on a trial-by-trial basis the location of visual targets, as a marker of the locus of attention, and intentions to reach and to saccade in different directions using the activity of neurons in the posterior parietal cortex of two monkeys. Predictions of target locations were significantly worse than predictions of movement plans for the same target locations. Moreover, neural signals in the parietal reach region (PRR) gave better predictions of reaches than saccades, whereas signals in the lateral intraparietal area (LIP) gave better predictions of saccades than reaches. Taking together the activity of both areas, the prediction of either movement in all directions became nearly perfect. These results cannot be explained in terms of an attention effect and support the idea of two segregated populations in the posterior parietal cortex, PRR and LIP, that are involved in different movement plans.
DOI Link: 10.1523/JNEUROSCI.3468-05.2006
eISSN: 1529-2401
Type: Journal Article
Appears in Collections:Published Articles, Dept. of Engineering

Files in This Item:
There are no files associated with this item.

Items in LRA are protected by copyright, with all rights reserved, unless otherwise indicated.